The Bombardier Dash 8 or Q-Series, previously known as the de Havilland Canada Dash 8 or DHC-8, is a series of twin-engined, medium range, turboprop airliners. Introduced by de Havilland Canada in 1984, they are now produced by Bombardier Aerospace. Over 1,000 Dash 8s of all models have been built, with Bombardier forecasting a total production run of 1,192 aircraft of all variants through to 2016.The Dash 8 was developed from the de Havilland Canada Dash 7, which featured extreme short take-off and landing performance. With the Dash 8, DHC focused on improving cruise performance and lowering operational costs. The engine chosen was the Pratt & Whitney Canada PW100. The aircraft has been delivered in four series. The Series 100 has a maximum capacity of 39, the Series 200 has the same capacity but offers more powerful engines, the Series 300 is a stretched, 50-seat version, and the Series 400 is further stretched to 78 passengers. Models delivered after 1997 have cabin noise suppression and are designated with the prefix "Q". Production of the Series 100 ceased in 2005, and the Q200 and Q300 in 2009. Bombardier is considering launching a stretched version of the Q400. Wikipedia.
Bombardier | Date: 2015-06-19
A method of limiting belt slip in a continuously variable transmission (CVT) of a vehicle. The CVT is operatively connected to an engine. The method includes determining a slip speed of a belt of the CVT, determining the accumulated energy based on the slip speed of the belt and an engine torque produced by the engine, and controlling the engine torque in an intervention mode when the accumulated energy is greater than a threshold energy. Controlling the engine torque in the intervention mode comprises controlling at least one of cycling the engine torque, and limiting the engine torque. Systems and vehicles for performing the method are also disclosed.
Bombardier | Date: 2015-07-30
A method of operating a vehicle. The vehicle includes an engine. The method including determining if the engine is to be operated at idle and determining a current mode of operation of the vehicle. The current mode of operation is any one of a plurality of modes of operation including at least a first mode and a second mode. The method includes, if the engine is to be operated at idle, operating the engine at a first idle speed if the current mode of operation of the vehicle is the first mode of operation; and operating the engine at a second idle speed if the current mode of operation of the vehicle is the second mode of operation. The first idle speed is greater than the second idle speed.
Bombardier | Date: 2015-07-23
A track system for a vehicle traveling on a ground. An endless track is connected to a frame by a plurality of wheels rotatably connected to the frame. A track contact area portion supports the vehicle on flat ground. A corner idler wheel is rotatably mounted on a shaft movably connected to the frame by an adjuster. A track portion extends from the corner idler wheel towards the contact area portion defining an attack angle with respect to the flat ground. The corner idler wheel is thereby movable at least between a first position having a first track tension and a first attack angle, and a second position having a second track tension and a second attack angle. The first and the second track tensions are substantially the same. The second attack angle is larger than the first attack angle. Vehicles having the track system are also disclosed.
Bombardier | Date: 2015-08-28
A vehicle has a frame, an engine connected to the frame, an output shaft driven by the engine, a bracket resiliently mounted to the engine, a countershaft rotationally supported by the bracket, a driving pulley disposed on the output shaft and rotating therewith, a driven pulley disposed on the countershaft and rotating therewith, a drive belt looped around the driving and driven pulleys to transfer torque from the driving pulley to the driven pulley, the driving pulley, the driven pulley and the drive belt together forming a continuously variable transmission, and at least one ground engaging member operatively connected to the countershaft.
Bombardier | Date: 2015-02-20
A cross-over switch system for switching a monorail vehicle between two fixed guideway beams is provided. The cross-over switch system includes two articulated beams and a median beam. Each one of the two articulated beams, constructed of a chain of pivotably interconnected segments, and is pivotably connected to a different one of the two parallel fixed guideways. The median beam, which is pivotable in its center, is located at a median distance between the two parallel fixed guideway beams. When in a switching mode, the median beam is pivoted and each segment of each articulated beam is also pivoted so that each one of the articulated beam abuts an opposed end of the median beam.